Craftsman 21829 Operation Manual - Page 23

Of Kickback

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CAUSES OF KICKBACK Kickback can occur when the blade stalls or binds, kicking the workpieca back toward you with great force and speed. If your handsare near the saw blade, they may be jerked loosefrom the workpiece and may contact the blade. Kickback can cause seriousinjury.Use precautions to avoidthe risks. Kickback can be caused by any action that pinches the blade in the wood such as: • Making a cut with incorrect blade depth • Sawlng into knots or nailsin the workpiece • Twistingthe wood while makinga out • Failing to supportwork • Forcing a cut • Cutting warped orwet lumber • Us{ng the wrong blade for the type of cut • Not following oorrect operating procedures • Misusing the saw • Failing to use the an_-kick.baokpawls • Cutting with a dull, gummed-up, or h'npmperiy set b_ad_ AVOIDING KICKBACK • Always use the correct blade depth setting. The top of the blade teeth shouldclear the workpiece by 1/8 in. to 114in. • Inspect the work for knots or nailsbefore beginninga cut KnocY,out any loose knots w_tha hamme_'N. ever saw into a loose knot or na|(. • Always use the rip fence when rip cutting and the miter gauge when cross cutting.This helps preventtwisting the wood in the cut. • Always use cLsans, harp, and properly-set blades, Never make outs with dull blades. • TOavoid pinchingthe blade, supportthe work properly before beginning a cut, • When making a cut. usesteady, even pressure. Never force outs. • Do not cut wet or warped lumber. • Always herdyour workplece fLrmtywith both hands or with push sticks. Keep your body in a balanoed position to be ready to resist kickbackshould it occur. Never stand direc_y in line with the blade. • Use the right type of blade for the cut being made. CUTTING AIDS See Figure 24. Push sticksare devices used for safelypushing a workpLscethroughthe blade. They can be made _'orn scrap wood in various sizes and shapes to be used in a specific project.The stick must be narrowerthan the workpieoe,with s g0° notchin one end and shapingfor a grip on the other end. A push block has a handle fastened by recessed screws from the underside. Use it on non-throughcuts. CAUTION: Be sure the screws in a push blockare recessedto avoid damagingthe saw or workpiece. PUStlSTICKS Rg. 24 23

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CAUSES
OF KICKBACK
Kickback can occur when the blade stalls or binds, kick-
ing the workpieca back toward you with great force and
speed. If your handsare near
the
saw blade, they may
be jerked loosefrom
the
workpiece
and
may contact the
blade. Kickback can cause seriousinjury.Use precautions
to avoidthe risks.
Kickback
can be caused by any
action that pinches the
blade
in the
wood such
as:
•
Making a cut with
incorrect
blade depth
•
Sawlng
into
knots or nailsin the workpiece
•
Twistingthe wood while makinga
out
•
Failing to supportwork
•
Forcinga
cut
•
Cutting warped orwet lumber
•
Us{ng
the
wrong blade
for
the type of cut
•
Not following oorrect
operatingprocedures
•
Misusing the saw
•
Failing
to
use
the
an_-kick.baokpawls
•
Cutting
with a
dull,
gummed-up, or
h'npmperiy
set
b_ad_
AVOIDING
KICKBACK
•
Always
use the
correct
blade depth
setting. The top
of
the blade teeth shouldclear the workpiece by 1/8
in.
to
114in.
•
Inspect the
work
for
knots or nailsbefore beginning
a
cut
KnocY,
out any loose
knotsw_th
a
hamme_'.
Never
saw
into
a
loose
knot or na|(.
•
Always use
the
rip fence when rip cutting
and
the miter
gauge when cross cutting.This helps preventtwisting
the wood in
the cut.
•
Always use cLsan,
sharp,
and
properly-set
blades,
Never make
outs
with dull blades.
•
TO
avoid pinchingthe blade, support
the
work properly
before beginning
a
cut,
•
When making a cut. usesteady, even pressure. Never
force
outs.
•
Do not cut wet or warped
lumber.
•
Always herdyour workplece
fLrmty
with
both hands
or
with push sticks. Keep your body in a
balanoed
posi-
tion to
be
ready to resist kickbackshould it occur.
Never
stand direc_y
in line
with
the blade.
•
Use the right type of
blade for
the cut
being
made.
CUTTING
AIDS
See
Figure
24.
Push sticksare devices used for safelypushing
a
workpLscethroughthe blade.They can be made
_'orn
scrap wood in various
sizes
and shapes
to be
usedin
a specific project.The stick must be narrowerthan the
workpieoe,with s g0
°
notchin one end and shapingfor
a
gripon
the
other
end.
A push block has
a
handle
fastened
by
recessed
screws
from
the underside.
Use it on non-throughcuts.
CAUTION:
Be sure
the
screws in a push block
are
recessedto avoid damagingthe saw or workpiece.
PUStlSTICKS
Rg. 24
23